Worse than a fuck up a wannabe fuck up goes out their way to draw attention to the "fact" that their life is sooooo bad. They tell you all their "problems" which are not really that bad and blame any failure or error on their part on their past. They make public displays of sadness or stupidity and want the world to know how "hard" they have it. They actually want to be victims when they are in reality probably not at all. Some film examples of wannabe fuck ups are Demi Moore in St Elmos Fire, Billy Crudup in Inventing the Abbotts and Clea DuVall in The Faculty.
wannabe fuck ups are much worse than fuck ups, they REALLY piss me off!